METHOD OF DIFFERENTIAL DIAGNOSTICS OF MALIGNANT AND BENIGN PIGMENT-FREE SKIN TUMOURS Russian patent published in 2010 - IPC A61B5/00 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, particularly to oncology. For differential diagnostics of benign and malignant pigment-free skin neoplasms, three-channel fluorescent RGB image of interest area is obtained in 3 hours after oral administration of Alasens medicine in amount of 15 mg per kg of body weight. Red channel share in tumour image is assessed by formula: R_tum=(R/(R+G+B))*100%, where R_tum is red channel share in tumour image, R, G and B are luminance of red, green and blue channels of tumour image. Red channel share in surrounding healthy skin image is assessed by formula: R_cut=(R/(R+G+B))*100%, where R_cut is red channel share in healthy skin image. Colorimetric deviation in red channel is calculated by formula: R_diff=((R_tum-R_cul)/R_cut)*100%, where R_diff is colorimetric deviation rate for red channel. For R_diff under 10% benign tumour is diagnosed, and for R_diff equal or over 10% malignant tumour is diagnosed.

EFFECT: enhanced precision of differential diagnostics of various pigment-free skin neoplasms on the basis of quantitative assessment.

6 dwg, 2 ex